There's a pic on Electrek that somebody managed to take off the rear 2 seats. Interestingly they appear to have no headrests. I think, because the back of the car swoops down so much that the rear glass is too low to sit 2 adults - and these are only for very small adults, or children! Look at how low the car is where the rear seats would be - and remember where the feet are is where the electric motor is! I personally would guess the max height is 5ft (152cm). Given that sitting really close to the back of a car (a foot or so) is also a bit dangerous if the car is rear-ended, is it a mistake to cram these 2 seats in a car this short? It's not a minivan shape. It's shaped more like a slightly inflated Prius. Given that the Model S was described as a 5+2 seater (because the 2 rear seats could only sit children) shouldn't the Y also be described as this in that configuration? It seems a bit unethical of Tesla to sell this as a 7 seater. Also it seems they deliberately did not show the boot as a 5 or 7 seater, or the inside of the car in the reveal video. The internal pic of the car on the website cunningly does not show the rear glass and is angled so you don't really know where the rear roof comes down.